Hi hack13
and welcome to jOpenSim
Hmmm, this problem is reported the first time now

Is there maybe any info about it in your error_log or access_log?
Another possibility to hunt this problem is to enable debugging for groups and/or profile in jOpenSim general configuration and see what is turning up in /components/com_opensim/interface.log ... once the problem is found, do not forget to disable debugging in the config again since jOpenSim can be very chatty in this mode and fill up this logfile quite fast. And allthough there should not be any sensitive data in the log file, it is a good idea to empty it at the end since by default this file is readable for everybody.
Greetz
FoTo50